The strong criticism comes just a couple of years after the actress underwent a double mastectomy. Angelina found out in 2013 that she carried a mutation of a gene that sharply increases her chance of getting breast cancer.

The "Maleficent" star discussed several topics related to her humanitarian work with Wembly.

"Privilege to welcome UNHCR Special Envoy Angelina Jolie. Discussed refugee crisis, South Sudan and prevention of sexual violence in conflict," he captioned the trio of photos he posted.

RELATED: Angelina Jolie takes her kids to Cambodia for her new documentary:

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Angelina Jolie brings kids to Cambodia

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Angelina Jolie brings kids to Cambodia

Actress Angelina Jolie (L) and Cambodian-born American human rights activist and lecturer Loung Ung laugh as they arrive for a news conference at a hotel in Siem Reap province, Cambodia, February 18, 2017. REUTERS/Samrang Pring TPX IMAGES OF THE DAY

Cambodian Minister of Culture and Fine Arts Phoeung Sackona (Front R), Hollywood star Angelina Jolie (2nd-R) and her children listen to Cambodian national anthem during the the premiere of Jolie's new film 'First They Killed My Father' at the Elephant Terrace inside the Angkor park in Siem Reap on February 18, 2017.
Angelina Jolie unveiled her new film on the horrors of the Khmer Rouge era on Saturday at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / STR (Photo credit should read STR/AFP/Getty Images)

Hollywood star Angelina Jolie (1st-L) speaks as her children and actors of her new film stand on a stage during the premiere of Jolie's new film 'First They Killed My Father' at the Elephant Terrace inside the Angkor park in Siem Reap on February 18, 2017.
Angelina Jolie unveiled her new film on the horrors of the Khmer Rouge era on Saturday at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / STR (Photo credit should read STR/AFP/Getty Images)

Cambodian King Norodom Sihamoni (L) gives flowers to Hollywood star Angelina Jolie (R) during the premiere of Jolie's new film 'First They Killed My Father' at the Elephant Terrace inside the Angkor park in Siem Reap on February 18, 2017.
Angelina Jolie unveiled her new film on the horrors of the Khmer Rouge era on Saturday at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / STR (Photo credit should read STR/AFP/Getty Images)

Hollywood star Angelina Jolie (L) walks past Cambodian King Norodom Sihamoni (C) and former queen Monique (R) during the premiere of Jolie's new film 'First They Killed My Father' at the Elephant Terrace inside the Angkor park in Siem Reap on February 18, 2017.
Angelina Jolie unveiled her new film on the horrors of the Khmer Rouge era on Saturday at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / STR (Photo credit should read STR/AFP/Getty Images)

Hollywood star Angelina Jolie (R) pays respect to Cambodian King Norodom Sihamoni (2nd-L) as former queen Monique (1st-L) looks on during the premiere of Jolie's new film 'First They Killed My Father' at the Elephant Terrace inside the Angkor park in Siem Reap on February 18, 2017.
Angelina Jolie unveiled her new film on the horrors of the Khmer Rouge era on Saturday at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / STR (Photo credit should read STR/AFP/Getty Images)

Hollywood star Angelina Jolie (C) and Maddox Jolie-Pitt (R) pay their respects to Cambodian King Norodom Sihamoni (L) during an audience at the royal residence in Siem Reap on February 18, 2017.
Angelina Jolie will unveil her new film on the horrors of the Khmer Rouge era on February 18 at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / STR (Photo credit should read STR/AFP/Getty Images)

Maddox Jolie-Pitt (C) greets Cambodian King Norodom Sihamoni (L) as Hollywood star Angelina Jolie (R) looks on during an audience at the royal residence in Siem Reap on February 18, 2017.
Angelina Jolie will unveil her new film on the horrors of the Khmer Rouge era on February 18 at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / STR (Photo credit should read STR/AFP/Getty Images)

Hollywood star Angelina Jolie (3rd R) attends an audience with Cambodian King Norodom Sihamoni (R) as her children look on at the royal residence in Siem Reap on February 18, 2017.
Angelina Jolie will unveil her new film on the horrors of the Khmer Rouge era on February 18 at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / STR (Photo credit should read STR/AFP/Getty Images)

SIEM REAP, CAMBODIA - FEBRUARY 18: Angelina Jolie talks to press during a press conference ahead of the premiere of her new movie 'First They Killed My Father' set up at the Raffles Grand Hotel D'Angkor on February 18, 2017 in Siem Reap, Cambodia. Angelina Jolie is in Siem Reap for the world premiere of her new movie, 'First They Killed my Father,' a Netflix-produced adaption of the autobiography by the same name penned by Loung Ung, who lived through the Khmer Rouge regime as a young child. The film will be screened Saturday night in the Angkor Wat temple complex, and released later this year on Netflix. (Photo by Omar Havana/Getty Images)

Hollywood star Angelina Jolie (R) pays her respects during an audience with Cambodian King Norodom Sihamoni (L) at the royal residence in Siem Reap on February 18, 2017.
Angelina Jolie will unveil her new film on the horrors of the Khmer Rouge era on February 18 at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / STR (Photo credit should read STR/AFP/Getty Images)

SIEM REAP, CAMBODIA - FEBRUARY 18: Angelina Jolie (right) talks to actress Sareum Srey Moch (left) during a press conference ahead of the premiere of their new movie 'First They Killed My Father' set up at the Raffles Grand Hotel D'Angkor on February 18, 2017 in Siem Reap, Cambodia. Angelina Jolie is in Siem Reap for the world premiere of her new movie, 'First They Killed my Father,' a Netflix-produced adaption of the autobiography by the same name penned by Loung Ung, who lived through the Khmer Rouge regime as a young child. The film will be screened Saturday night in the Angkor Wat temple complex, and released later this year on Netflix. (Photo by Omar Havana/Getty Images)

SIEM REAP, CAMBODIA - FEBRUARY 18: Angelina Jolie (left) and producer Rithy Panh (center) chat with actors before holding a press conference ahead of the premiere of their new film 'First They Killed My Father' set up at the Raffles Grand Hotel D'Angkor on February 18, 2017 in Siem Reap, Cambodia. Angelina Jolie is in Siem Reap for the world premiere of her new movie, 'First They Killed my Father,' a Netflix-produced adaption of the autobiography by the same name penned by Loung Ung, who lived through the Khmer Rouge regime as a young child. The film will be screened Saturday night in the Angkor Wat temple complex, and released later this year on Netflix. (Photo by Omar Havana/Getty Images)

Hollywood star Angelina Jolie (C) speaks as Cambodian film maker Rithy Panh (L) looks on at a hotel in Siem Reap on February 18, 2017.
Angelina Jolie will unveil her new film on the horrors of the Khmer Rouge era on February 18 at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / TANG CHHIN SOTHY (Photo credit should read TANG CHHIN SOTHY/AFP/Getty Images)

Hollywood star Angelina Jolie (3rd L) and her children including Maddox Jolie-Pitt (C) gesture to media in front of the royal residence for a meeting with Cambodian King Norodom Sihamoni in Siem Reap on February 18, 2017.
Angelina Jolie will unveil her new film on the horrors of the Khmer Rouge era on February 18 at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / TANG CHHIN SOTHY (Photo credit should read TANG CHHIN SOTHY/AFP/Getty Images)

Hollywood star Angelina Jolie speaks to media during a press conference at a hotel in Siem Reap on February 18, 2017.
Angelina Jolie will unveil her new film on the horrors of the Khmer Rouge era on February 18 at the ancient Angkor Wat temple complex in Cambodia, a country the star shares a deep affinity with through her adopted son Maddox. / AFP / TANG CHHIN SOTHY (Photo credit should read TANG CHHIN SOTHY/AFP/Getty Images)

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Jolie was appointed to her United Nations position in 2012, and it's one that she takes very seriously. She has previously worked with Welby during the 2015 opening of the Centre for Peace and Security at the London School of Economics, where she spoke out against sexual violence.

The important engagement marks the end of a busy week in London for Jolie, who taught her first class at the London School of Economics on Tuesday. She is now working as a "professor in practice," teaching a course on Women, Peace and Security. Later in the day, she and son Maddox paid a visit to Buckingham Palace where they got a "highly unusual private tour" of Queen's Elizabeth's digs.

The Oscar-winning actress is slowly crawling back into the spotlight after remaining out of the public eye amid her tumultuous divorce with Brad Pitt. In a recent BBC interview to promote her new documentary, "First They Killed My Father," she opened up about the headline-making split:

"I don't want to say very much about that except to say that it was a very difficult time," she emotionally said. "And we are a family and will always be a family. And we will get through this time and hopefully be a stronger family for it."

RELATED: Brad and Angelina through the years:

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Brad Pitt and Angelina Jolie together through the years

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Brad Pitt and Angelina Jolie together through the years

LONDON, ENGLAND - FEBRUARY 16: Actors Angelina Jolie and Brad Pitt attend the EE British Academy Film Awards 2014 at The Royal Opera House on February 16, 2014 in London, England. (Photo by Anthony Harvey/Getty Images)

TOKYO, JAPAN - JULY 28: Brad Pitt, Angelina Jolie and their children Pax, Knox and Vivienne arrive at Tokyo International Airport on July 28, 2013 in Tokyo, Japan. (Photo by Jun Sato/WireImage)

US actors Brad Pitt and Angelina Jolie arrive for the screening of the movie 'Inglourious Basterds' directed by US Quentin Tarantino in competition at the 62nd Cannes Film Festival on May 20, 2009. AFP PHOTO / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

BERLIN, GERMANY - JUNE 04: Angelina Jolie and Brad Pitt attend the premiere of 'World War Z' at Sony Centre on June 4, 2013 in Berlin, Germany. (Photo by Luca Teuchmann/WireImage)

BERLIN, GERMANY - JUNE 04: Angelina Jolie and Brad Pitt attend the premiere of 'World War Z' at Sony Centre on June 4, 2013 in Berlin, Germany. (Photo by Luca Teuchmann/WireImage)

US actress and director Angelina Jolie (L) and her partner Brad Pitt pose on the red carpet during the premiere of her film 'In the Land of Blood and Honey' in Sarajevo on February 14, 2012. Hollywood star Angelina Jolie said today that her film about the Bosnian war should be a 'wake-up call' for the world to act in time to prevent atrocities like those now happening in Syria. Jolie and her partner Brad Pitt arrived to Sarajevo to attend the premiere of her film 'In the Land of Blood and Honey' -- her directorial debut -- to be screened in a sports hall before an expected audience of 5,000 people. AFP PHOTO / ELVIS BARUKCIC (Photo credit should read ELVIS BARUKCIC/AFP/Getty Images)

American actors Brad Pitt and Angelina Jolie in southern Italy during the filming of 'Mr and Mrs Smith', 2004. (Photo by Juergen Vollmer/Redferns/Getty Images)

Angelina Jolie and Brad Pitt (Photo by Gregg DeGuire/WireImage)

US actor Brad Pitt and actress Angelina Jolie pose for photographers as they arrive for the European premiere of the film 'The Tourist', by German director Florian Henckel von Donnersmarck, in Berlin December 14, 2010. AFP PHOTO / JOHN MACDOUGALL (Photo credit should read JOHN MACDOUGALL/AFP/Getty Images)

US actor Brad Pitt and his wife, US actress Angelina Jolie, pose on the red carpet before the screening of 'The Tree of Life' presented in competition at the 64th Cannes Film Festival on May 16, 2011 in Cannes. AFP PHOTO / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

LONDON, ENGLAND - FEBRUARY 16: (EDITORS NOTE: This image has been processed using digital filters) Angelina Jolie and Brad Pitt attend the EE British Academy Film Awards 2014 at The Royal Opera House on February 16, 2014 in London, England. (Photo by Tim P. Whitby/Getty Images)

WASHINGTON, DC - OCTOBER 15: Brad Pitt attends 'Fury' Washington DC Premiere at The Newseum on October 15, 2014 in Washington, DC. (Photo by James Devaney/WireImage)

HOLLYWOOD, CA - MARCH 02: Producer Brad Pitt, winner of Best Picture for '12 Years a Slave', poses in the press room during the Oscars at Loews Hollywood Hotel on March 2, 2014 in Hollywood, California. (Photo by Jason Merritt/Getty Images)

BERLIN, GERMANY - FEBRUARY 13: Actors Angelina Jolie and Brad Pitt attend the Cinema for Peace Gala ceremony at the Konzerthaus Am Gendarmenmarkt during day five of the 62nd Berlin International Film Festival on February 13, 2012 in Berlin, Germany. (Photo by Pascal Le Segretain/Getty Images for Cinema for Peace)

HOLLYWOOD, CA - MARCH 02: (EDITORS NOTE: This image was processed using digital filters) Producer Brad Pitt, winner of Best Picture for '12 Years a Slave', poses in the press room during the Oscars at Loews Hollywood Hotel on March 2, 2014 in Hollywood, California. (Photo by Jason Merritt/Getty Images)

LONDON, ENGLAND - MAY 08: (EDITORS NOTE: Image has been converted to black and white.) Brad Pitt attends a private reception as costumes and props from Disney's 'Maleficent' are exhibited in support of Great Ormond Street Hospital at Kensington Palace on May 8, 2014 in London, England. (Photo by Anthony Harvey/Getty Images)

TORONTO - SEPTEMBER 10: Actor Brad Pitt attends 'Babel' press conference during the Toronto International Film Festival held at the Sutton Place Hotel on September 10, 2006 in Toronto, Canada. (Photo by Evan Agostini/Getty Images)

LONDON, ENGLAND - FEBRUARY 16: Brad Pitt and Angelina Jolie attend the EE British Academy Film Awards 2014 at The Royal Opera House on February 16, 2014 in London, England. (Photo by Dave J Hogan/Getty Images)

US actress and special UN envoy Angelina Jolie (L) and her husband US actor Brad Pitt arrive on the fourth day of the Global Summit to End Sexual Violence in Conflict in London on June 13, 2014. US Secretary of State John Kerry will speak at the closing session of the four-day long Global Summit to End Sexual Violence in Conflict, which is being co-hosted by Hollywood actress Angelina Jolie and British Foreign Secretary William Hague. UN Secretary General Ban Ki Moon will also appear by video link. AFP PHOTO / CARL COURT (Photo credit should read CARL COURT/AFP/Getty Images)

LONDON, ENGLAND - JUNE 13: UN Special Envoy and actress Angelina Jolie and Actor Brad Pitt attend the Global Summit to End Sexual Violence in Conflict at ExCel on June 13, 2014 in London, England. The four-day conference on sexual violence in war is hosted by Foreign Secretary William Hague and UN Special Envoy and actress Angelina Jolie. (Photo by Eamonn McCormack/WireImage)

LONDON, UNITED KINGDOM - JUNE 13: UN Special Envoy and actress Angelina Jolie (L), actor Brad Pitt (R), British Foreign Secretary William Hague (not seen) and his wife Ffion Hague (not seen) attend the Global Summit To End Sexual Violence In Conflict in London, United Kingdom on June 13, 2014. The four-day conference on sexual violence in war is hosted by Foreign Secretary William Hague and UN Special Envoy and actress Angelina Jolie. (Photo by Yunus Kaymaz/Anadolu Agency/Getty Images)

LONDON, ENGLAND - JUNE 12: Actor Brad Pitt and UN Special Envoy and actress Angelina Jolie listen to testimonies of victims of violence as they attend the Global Summit to End Sexual Violence in Conflict at ExCel on June 12, 2014 in London, England. The four-day conference on sexual violence in war is hosted by Foreign Secretary William Hague and UN Special Envoy and actress Angelina Jolie. (Photo by Lefteris Pitarakis - Pool/Getty Images)

LONDON, ENGLAND - JUNE 12: Actor Brad Pitt and UN Special Envoy and actress Angelina Jolie view photographs of victims of violence as they attend the Global Summit to End Sexual Violence in Conflict at ExCel on June 12, 2014 in London, England. The four-day conference on sexual violence in war is hosted by Foreign Secretary William Hague and UN Special Envoy and actress Angelina Jolie. (Photo by Lefteris Pitarakis - Pool/Getty Images)

NEW YORK, NY - MAY 12: Actors Brad Pitt and Angelina Jolie attends 'The Normal Heart' New York Screening at Ziegfeld Theater on May 12, 2014 in New York City. (Photo by Bobby Bank/FilmMagic)

LONDON, ENGLAND - MAY 08: Brad Pitt and Angelina Jolie attends a private reception as costumes and props from Disney's 'Maleficent' are exhibited in support of Great Ormond Street Hospital at Kensington Palace on May 8, 2014 in London, England. (Photo by Eamonn McCormack/WireImage)

HOLLYWOOD, CA - MARCH 02: Actress Lupita Nyong'o (R), winner of the Best Performance by an Actress in a Supporting Role award for '12 Years a Slave,' with director Steve McQueen (C) as actress Angelina Jolie (top L) and actor/producer Brad Pitt (top C) look on during the Oscars at the Dolby Theatre on March 2, 2014 in Hollywood, California. (Photo by Kevin Winter/Getty Images)

LONDON, ENGLAND - FEBRUARY 16: Angelina Jolie and Brad Pitt attend the EE British Academy Film Awards 2014 at The Royal Opera House on February 16, 2014 in London, England. (Photo by Karwai Tang/WireImage)

LONDON, ENGLAND - FEBRUARY 16: Brad Pitt and Angelina Jolie attend the EE British Academy Film Awards 2014 at The Royal Opera House on February 16, 2014 in London, England. (Photo by Dave J Hogan/Getty Images)

SYDNEY, AUSTRALIA - NOVEMBER 17: Angelina Jolie and Brad Pitt walk the red carpet at the Unbroken world premiere on November 17, 2014 in Sydney, Australia. (Photo by KHAP/GG/GC Images)

SYDNEY, AUSTRALIA - NOVEMBER 17: Angelina Jolie and Brad Pitt walk the red carpet at the Unbroken world premiere on November 17, 2014 in Sydney, Australia. (Photo by KHAP/GG/GC Images)

LONDON, ENGLAND - JUNE 13: UN Special Envoy and actress Angelina Jolie and Actor Brad Pitt attend the Global Summit to End Sexual Violence in Conflict at ExCel on June 13, 2014 in London, England. The four-day conference on sexual violence in war is hosted by Foreign Secretary William Hague and UN Special Envoy and actress Angelina Jolie. (Photo by Eamonn McCormack/WireImage)

LONDON, ENGLAND - JUNE 13: Ffion Hague, British Foreign Secretary William Hague, UN Special Envoy and actress Angelina Jolie and Actor Brad Pitt attend the Global Summit to End Sexual Violence in Conflict at ExCel on June 13, 2014 in London, England. The four-day conference on sexual violence in war is hosted by Foreign Secretary William Hague and UN Special Envoy and actress Angelina Jolie. (Photo by Eamonn M. McCormack/Getty Images)

HOLLYWOOD, CA - NOVEMBER 05: Angelina Jolie and Brad Pitt attend the premiere of 'By the Sea' at the 2015 AFI Fest at TCL Chinese 6 Theatres on November 5, 2015 in Hollywood, California. (Photo by Jason LaVeris/FilmMagic)

Actors Angelina Jolie and Brad Pitt arrive at the premiere of 'By the Sea' at the opening night of AFI FEST 2015 held at TCL Chinese Theater in Hollywood. (Photo by Frank Trapper/Corbis via Getty Images)